Tree 5-15 m, sometimes with stilt-roots. Leaves chartaceous, elliptic to oblong(-oblanceolate), 12-32 by 4-13 cm, base rounded to acute, apex acute-acuminate; Inflorescences: Fruits 1-6 per infructescence, obovoid to ellipsoid(-oblong), apex obtuse or shortly beaked, 2-2.5 by 1.1-1.6 cm, with rusty hairs 0.1-0.2 mm;
Asia-Tropical: Borneo present (Brunei present, Sabah present, Sarawak present), NE Borneo present, Nunukan Is present
Malesia: Borneo (Sarawak, Brunei, Sabah, NE Borneo: Nunukan Is.).
1 Knema elmeri is characterized by the silky indumentum on the lower leaf surface, flaking bark of the twigs, ± globose male flower buds, and a distinctly convex staminal disc. 2 The nature of the indumentum of the lower leaf surface places K. elmeri along with K. ashtoni, K. retusa, and K. sericea, but there is also a close alliance with K. latericia, especially subsp. ridleyi, on account of the cracking bark of the twigs, and the convex staminal disc.